Effects of Anisotropic Thermal Conduction on X-Ray Emission from SNRs

Details Effects of Anisotropic Thermal Conduction on X-Ray Emission from SNRs Effects of Anisotropic Thermal Conduction on X-Ray Emission from SNRs

Jan 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003rmxac..15..246v&link_type=abstract

Winds, Bubbles, and Explosions: a conference to honor John Dyson, Pátzcuaro, Michoacán, México, September 9-13, 2002 (Eds. S. J.

Astronomy and Astrophysics

Astronomy

1

Ism: Magnetic Fields, Ism: Supernova Remnants, Methods: Numerical, X-Rays: Ism

Scientific paper

Several physical mechanisms have been studied in order to explain why composite supernova remnants (SNRs) have shell-like morphologies in radio continuum while their X-ray emission is centrally peaked. One of the proposed mechanisms has been the presence of thermal conduction, which can raise the density at the center of SNRs, increasing the X-ray emission from these regions. In this work, we have carried out axisymmetric numerical simulations with the adaptive grid yguazú-a code, including the advection of the magnetic field and the thermal conduction. We have considered cases with anisotropic thermal conduction, as well as with no conduction. We have simulated X-ray emission maps from our numerical simulations for these both cases, and we then compare these predictions with recent X-ray observations of SNRs.

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